FRANTISEK KUPKA (OPOCNO 1871 - PUTEAUX 1957) "Etude pour planes et machines" 1928-29 pencil on paper cm 23×26.8 Signed in the center Provenance Galerie Flinker, Paris Galleria Fonte d'Abisso, Modena (no. 1031) Private collection Exhibitions “Frantisek Kupka. Works from 1910 to 1937” Galleria Fonte d'Abisso, Modena, May 19–July 7, 1979, p. 66, no. 15, ill. in catalog “Frantisek Kupka, ‘Le Presenze’” Galleria Blu, Milan, September–October 1979, p. 15, ill. in catalog This work is accompanied by a certificate of authenticity on photograph issued by Pierre Brulle, Paris, dated October 8, 2013